Electrical condenser



Nov. 30,1926. 1,608,922

W. A. BOCKIUS ELECTRICAL CONDENSER Filed 6, 1925 Patented Nov. 30, 1926.. I

WALTER a. BOCKIUS, or WILMETTE, ILLINOIS, Assrenon. TO rrnnraen, wnn'r'rnn, BooKIUs, A corearnnnsnrr consisrmo or H. r. TIDEIVIAN, H. H. wrrnrrna, Ann w. A. BOCKIUS, orcnroeeo, ILLINOIS.

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Application filed June 6, 1925. Serial No. 35,458.

The invention relates to electrical condenscorelated with the operative area of the ers and more particularly to that type in plates, so that the diagonally opposite cor- 55 which two sets of interleaved plates are conners of the plates will be substantially cojointly shifted to increase or decrease the incident when the plates are in non-active lapped areas of the plates. or non-lapped relation, as shown by dotted One object of the invention is to provide lines in Fig. 2, and so that the plates will be improved means for relatively shifting theshifted diagonally with respect to one an- 60 interleaved plates and to dispense with gears other, until all corners thereof are coincident for that purpose. Another object of the in and the plates are thoroughly lapped to pro vention is to provide improved shifting vide the maximum condensing capacity. n means for the plates of an electrical vconmoving into and'out of la ped relation the denser.

Other objects will appear from the speciis substantially maintained, so that the lapfi atio ing areas are increased or decreased in sub- The invention consists in the several novel stantially square uniform progression to features hereinafter set forth and more parcorrespondingly increase or decrease the caticularly defined by claimsat the conclusion pacity of the condenser in accordance with 7 hereof. the requirement in tuned radio frequency In the drawings: Fig. 1 is aplan of a concircuits. r

denser embodying the invention. Fig. 2 is a The improved mechanism for conjointly transverse section of the condenser, the and equidistantly shifting the. sets ofplates plates being shown in their unlapped posicomprises an arm 22 which is suitably fixed tion of Fig. 1. Fig. 3 is a section on line to hollow shaft 17 of plates 13 and a similar 3-3 of Fig. 1. Fig. 4 is an axial section arm 23 which is suitably fixed to the shaft 25 through the cam for shifting the plates. 20 of platesddc, and a rotatable disk 24: of in- Fig. 4* is a detail section showing the versulating material. The inner end of each of he cam disk the arms 22, 23 has suitably secured thereto nier adjustment for operating t wh n de ir d, a stud 30 and these studs are adapted to The invention is exemplified in a device travel respectively in spiral cam grooves 25 30 comprising a supporting bracket 6, which is and 26 formed in the inner face of the disk adapted to be clam ed against the inner face 24. so hat as 'the diskis rotated, the arms of a suitable p ane 5 by a nut 7 which is '22 and 23 'will swing oppositely between threaded to a bearing sleeve 9 which extends shafts 17 and 20. Disk 24: is fixed to shaft th h th b k t dv panel and is en- 27, which extends through the bearing sleeve 35 larged at its front end to abut against the 9. and has attached to its front end a suitpanel. A pair of fixed shafts 10 and 11 are able knob 28, whereby it may be manually each suitably secured in bracket 6 to pivotrotated to shift the disk and operate the ally support a pair of sets of interleaved plates13 and 14. An index or pointer 29 is plates 13 and 14:. The plates 13 are fixed in fixed to the knob '28, and is adapted to inkerfs in an arm 16 of a hollow shaft or dicate the degree of rotation and the corresleeve 17, which is, free to swing on the fixed sponding positions of the condenser plates shaft 10, and held against inner endwise on a suitable dial, usually fixed to thefront i displacement by a nut 18. Plates 14 are-inof the panel 5. This dial is usually marked terleaved with plates 13, are similarly secured to indicate degrees or calibrations, to indi- 4 to an arm 19 of a hollow shaft 20, which is cate the cooperative position of the plates.

pivoted on fixed shaft 11, and held against The studs 30 are preferably tapered and inner endwisedisplacement by a nut 18. the cam grooves 25 and 26 are similarly The operative area of both sets of plates tapered to provide a snug fit between the is substantially square, and the axes about studs and the grooves. Spring washers 33 50 which the sets of plates swing are located at areinterposed between the nuts 18 and the points adjacent opposite sides of the plates, shafts 17 and 20 respectively,to frictionally so that the latter will swing between them. hold the plates in their assigned positions. These points are corelatively disposed and When the disk is rotated, the cam grooves 25 arallelism of the sides of the square plates 6 means of this key the shaft section 15 is rotated until the proper date appears in the sight-aperture 56.

However, this rotation causes the unwinding of the power-spring 28, and the latter must be wound up again by inserting the same set-key 119 in the hollow portion 68 of the winder-shaft 62. For this purpose, the set-key is also provided with a crown 121 upon which are cut suitable teeth to fit those on the shaft portion 69.

The time required for making the above changes or adjustments amounts to only a few minutes, generally. But, in the meanwhile, the center-shaft 83 and its sprocket 8 1 of the alarm-clock keep on turning slowing, so that when the inner casing is again inserted in place, the spring extension 96 may not readily engage one of the spaces between the rectangular clutch-teeth 90. When the lapse of time is short, no further adjustment need be made, as this extension will soon engage one of said spaces and it is of no great importance whether or not the change of date be made a few minutes before or after midnight.

It the calendar mechanism has been disconnected too long from the alarmclock, it becomes necessary to make adjustments to the calendar-shitting mechanism also. This may be done by using the same set-key 119 on the clutch-teeth 90 or, preferably, by rotating the crown-gear 99 by hand until the actual hour or" the day at which this regulating is being done, as read on the graduations 103, appears in line with the pointer 104. When so adjusted, the change of date will occur at midnight.

The arrangement shown in Figs. 1 to 3 enables the application of my invention in connection with old alarm-clocks or other similar clocks. More pretentious effects are obtained in the embodiment illustrated in Fig. 4 wherein a complete calendar mechanism would be assembled in a drawer-like container 122 provided with a pull knob 123, and which would correspond to the inner casing mentioned hereinbei ore. The construction of the interior mechanism would be the same as above described, except for minor changes required by the shape of the outer casing.

Also, if desired, the calendar ribbon may have printed thereon, in addition to the dates, supplementary matter such as historical or religious holidays, etc, corres ponding to the various dates. v

As will be understood, as suggested herein, there may be slight changes made in the construction and arrangement of the details of my invention without departing from the field and scope of the same, and I intend to include all such variations, as fall within the scope of the appended claims, in this application in which the preferred form only of my invention has been illustrated and described.

1. In a clock operated calendar, a supply reel; a calendar-ribbon wound thereon; a wind-up reel and a spring operated mechanism adapted for winding said ribbon from said supply-reel onto said wind-up reel;

a plurality of guide-rolls and a pressureroll positioned intermediate said reels and engaged by said ribbon, and a release mechanism adapted to periodically release a definite portion of said ribbon onto said wind-up reel, said release mechanism comprising a stop-pin positioned on the shaft of said pressure-roll, an ,escapement-disc and clock operated means for periodically rotating said escapement-disc.

2. In a clock operated calendar, a supply reel; a calendar-ribbon wound thereon; a wind-up reel and a spring operated mechanism adapted for winding said ribbon from said supply-reel onto said windup reel; a plurality of guide-rolls for said ribbon; a pressure roll adapted to exert-a yielding pressure upon one of said guiderolls and to be rotated by said ribbon; a shaft for said pressure-roll; a stop-pin positioned on said shaft and adapted to prevent the rotation thereof; an escapement disc comprising a plurality of inclined seotoral vanes adapted to be engaged by said stop-pin, and clock operated means for periodically releasing the engagement between said stop-pin and escapement-disc to permit the rotation of said friction-roll for the purpose of winding a definite portion of said ribbon on said wind-up reel.

In testimony whereof I aflix my signature.

FRANK NEDBALEK. 

